4) Fill in the missing prepositions.

1) The little man behind the screen was terribly frightened. 2) How could you take the form of a Great Head? 3) He took them to a small room behind the Throne Room. 4) My Ball of Fire was made of cotton and it burned brightly. 5) The balloonist began to work in the circus. 6) Every day he went in a balloon high up into the sky.